Heelo, I have experience with the SAPI framework but I can adapt to other speach recognition tools. It is imposible for me to make an acurate bid with the informations you posted so the amounth i postes is not fixed.I tax around 6$/hour in case you need to compare my pricing with other developwers.
What I implemented was a system that allowed the user to control applications ,open menus,press buttons, enter text using the voice.